winding

The winding attribute of the Project.stator corresponds to the Stator Winding CheckPoint in the GUI. It is an instance of the StatorWindingData class, which can be accessed through eMotorSolution.CheckPoints.Stator.Winding.

Parameters

• phase_number_expression: str | int The mathematical expression string or integer representing the number of phases in the stator winding. Default is 3.
• layer_configuration_init: Literal["Single", "Distributed", "Concentrated"] Specifies the layer configuration of the stator winding. Default is Single.
• turns_per_coil_expression: str | int The mathematical expression string or integer representing the number of turns per coil in the stator winding. Default is 9.
• parallel_paths_expression: str | int The mathematical expression string or integer representing the number of parallel paths in the stator winding. Default is 1.
• coil_span_expression: str | int The mathematical expression string or integer representing the coil span in the stator winding. Default is 6.

Additional Considerations for coil_span

The coil_span is influenced by the layer_configuration:

• For Single layer configuration, the coil_span should be equal to the pole pitch $\dfrac{\text{number of slots}}{\text{phase number}}$.
• For Distributed winding, $1 \leq \text{coil span} \leq \dfrac{\text{number of slots}}{\text{phase number}}$.
• For Concentrated winding, coil span should be equal to $1$.

• winding_material_init: str The name of the winding material. It should be one of the non-magnet materials in the project's materials collection. Default is Copper.

Methods

Method	Description
set_phase_number(expression)	Sets the expression: str | int for phase_number.
set_layer_configuration(name)	Sets the name: Literal["Single", "Distributed", "Concentrated"] for layer_configuration. The coil_span will be adjusted accordingly.
set_turns_per_coil(expression)	Sets the expression: str | int for turns_per_coil.
set_parallel_paths(expression)	Sets the expression: str | int for parallel_paths.
set_coil_span(expression)	Sets the expression: str | int for coil_span. Effective only for Distributed winding.
set_winding_material(material_name)	Sets the material_name: str for winding_material. It should be one of the non-magnet materials in the project's materials collection.
validate()	Returns the validation status in dictionary format.

Attributes

Attribute	Description
phase_number	int Returns the evaluated number of phases in the stator winding. ⚠️ read-only
layer_configuration	Literal["Single", "Distributed", "Concentrated"] Returns the layer configuration of the stator winding. ⚠️ read-only
layer_number	int Returns the number of layers in the stator winding (1 for Single, 2 for Distributed and Concentrated). ⚠️ read-only
turns_per_coil	int Returns the evaluated number of turns per coil in the stator winding. ⚠️ read-only
parallel_paths	int Returns the evaluated number of parallel paths in the stator winding. ⚠️ read-only
coil_span	int Returns the evaluated coil span in the stator winding. ⚠️ read-only
winding_material	str Returns the name of the winding material. ⚠️ read-only